<template>
  <div id="app">
    <header>
      <router-view name="header"/>
    </header>
    <main>
      <router-view/>
    </main>
    <footer>
      <router-view name="footer" />
    </footer>
  </div>
</template>

<style lang="less">
  *{
    margin: 0;
    padding: 0;
  }
  html,body{
    width: 100%;
    height: 100%;
  }
  #app{
    display: flex;
    flex-direction: column;
    height: 100%;
      main{
        flex: 1;
        overflow: auto;
      }
  }
</style>
